Make callers of CommandLine use it via the base:: namespace.

chrome/browser/ui/webui/options/language_options_handler_common.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/options/language_options_handler_common.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 100 matching lines @@
   std::string application_locale = g_browser_process->GetApplicationLocale();
   localized_strings->SetString("currentUiLanguageCode", application_locale);
   std::string prospective_locale =
       g_browser_process->local_state()->GetString(prefs::kApplicationLocale);
   localized_strings->SetString("prospectiveUiLanguageCode",
       !prospective_locale.empty() ? prospective_locale : application_locale);
   localized_strings->Set("spellCheckLanguageCodeSet",
                          GetSpellCheckLanguageCodeSet());
   localized_strings->Set("uiLanguageCodeSet", GetUILanguageCodeSet());
 
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
   bool enable_spelling_auto_correct =
       command_line.HasSwitch(switches::kEnableSpellingAutoCorrect);
   localized_strings->SetBoolean("enableSpellingAutoCorrect",
                                 enable_spelling_auto_correct);
 
   Profile* profile = Profile::FromWebUI(web_ui());
   PrefService* prefs = profile->GetPrefs();
   std::string default_target_language =
       TranslateService::GetTargetLanguage(prefs);
   localized_strings->SetString("defaultTargetLanguage",
@@ skipping 156 matching lines @@
 }
 
 base::WeakPtr<SpellcheckHunspellDictionary>&
     LanguageOptionsHandlerCommon::GetHunspellDictionary() {
   if (!hunspell_dictionary_.get())
     RefreshHunspellDictionary();
   return hunspell_dictionary_;
 }
 
 }  // namespace options